For those Debian-inclined, this may be surprising. You can install RPMs by providing an URL to either yum or rpm -i:

rpm -i <a href="https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm">https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm</a>
yum install <a href="https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm">https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm</a>